東西和地方：耗光了、沒人補
這一組最貼近發條的畫面：裡面那份力氣或那份維護一直在減少，而沒有人補回去。
adjective · C1
A clock, watch or other machine that works by a spring is run-down when the spring has unwound completely, so the machine has slowed to a stop and needs winding again.
發條走完的；沒電的
核心畫面
A wound spring letting its power out. The clock ticks, the music box plays, and all the time the store inside is going down. When it is gone the hands stop in the middle of the hour — not broken, just empty, waiting for someone to wind it back up. One way to hold this word is that slow slide from full to spent, with nobody putting anything back.
可以想成一根上緊的發條正在把力氣放出去。鐘在走、音樂盒在響，裡面存的那份力氣同時一點一點在少。放完的時候，指針就停在…更多收起
可以想成一根上緊的發條正在把力氣放出去。鐘在走、音樂盒在響，裡面存的那份力氣同時一點一點在少。放完的時候，指針就停在半路上——它沒有壞，只是空了，等著有人把它上緊回去。這個字可以用這個畫面來記：從滿到空的那一段慢慢的下滑，而且中間沒有人補回去。From the word’s history
Deverbal from the phrasal verb run down.
這個形容詞是從動詞片語 run down 變成的（Wiktionary 記為 deverbal from run down）。所以每個用法底下都還聽得到那個動作：一路走、一路耗，耗到底。
Wiktionary entry for run-down (etymology: Deverbal from run down), supplied in the evidence packet
Two branches
人：電力用完的那種累
同一個畫面搬到身體上：連續幾週一直放電，沒有睡飽也沒有好好吃，人就停在很低的位置。
adjective · B2
Someone who is run-down is tired and not in good health, usually after working too hard or not resting or eating properly for a while. It is used after a verb such as be, look or feel, not before a noun.
疲憊虛弱的